Biogenic Cloud Sources. Spring 2012, Lecture 9. Alternative Cloud Formation Method. In the previous lecture, we saw various ways in which clouds could form There is another way clouds form, and it may be part of a cybernetic system. Sulfur Cycle.
Spring 2012, Lecture 9
Chlorophyll during the nine-year study period declined in the area of the North Pacific shown above in December from 1998 to 2006. Low-productivity areas —regions with 0.07 milligrams (0.000002 ounces) or less of chlorophyll per cubic meter (35 cubic feet)—expanded by more than 500,000 square kilometers per year between 1998 and 2006 in the North Pacific. (Courtesy J. Polovina)